EP 0500938 A4 19930127 - METHOD AND SERVICE FOR PREPARATION OF STANDARD VAPOUR-GAS MIXTURE OF SUBSTANCE TO BE ANALYZED

Title (en)

METHOD AND SERVICE FOR PREPARATION OF STANDARD VAPOUR-GAS MIXTURE OF SUBSTANCE TO BE ANALYZED

Publication

EP 0500938 A4 19930127 (EN)

Application

EP 91910376 A 19910530

Priority

SU 9100109 W 19910530
SU 4857234 A 19900806

Abstract (en)

[origin: EP0500938A1] A method for the preparation of a standard vapour-gas mixture of a substance to be analyzed consists in maintaining the substance to be analyzed at constant temperature and effecting a diffusion of the substance into a free volume, through which flows a gas carrier, from its solid phase. For that purpose, in a device for preparation of a standard vapour-gas mixture of a substance to be analyzed, and to complement the said method,there is a means (3) providing for penetration of the substance to be analyzed into a free volume, through which flows a gas carrier comprising a solid photographite matrix (4) whose interplane cavities serve as receptacles for the substance to be analyzed, and a casing (5) in which is placed said matrix (4). In a specific embodiment, the matrix (4) consists of a disk (60) provided with a channel (59). <IMAGE>

IPC 1-7

G01N 30/04; B01D 15/08

IPC 8 full level

G01N 1/34 (2006.01); G01N 30/04 (2006.01); G01N 33/00 (2006.01); G01N 1/22 (2006.01); G01N 1/28 (2006.01); G01N 1/40 (2006.01)

CPC (source: EP)

G01N 1/34 (2013.01); G01N 30/04 (2013.01); G01N 33/0011 (2013.01); G01N 1/2214 (2013.01); G01N 1/405 (2013.01); G01N 2001/2893 (2013.01); G01N 2001/4066 (2013.01)

Citation (search report)

[X] WO 9004174 A1 19900419 - FRANKLIN INSTR INC [US]
[X] US 4083885 A 19780411 - RODEWALD PAUL G
[A] EP 0360901 A1 19900404 - LEYBOLD AG [DE]
[A] EP 0047860 A1 19820324 - INTERATOM [DE]
[A] US 4865996 A 19890912 - CASTLEMAN BRUCE W [US], et al
[A] PATENT ABSTRACTS OF JAPAN vol. 10, no. 64 (P-436)(2121) 14 February 1986 & JP-A-60 205 246 ( NOUBI BOUSAI KOGYO ) 16 October 1985
[A] ANALYTICAL CHEMISTRY vol. 56, no. 13, October 1984, COLUMBUS US pages 2500 - 2503 IOFFE, B.V. ET AL.
See references of WO 9202812A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0500938 A1 19920902; EP 0500938 A4 19930127; EP 0500938 B1 19970102; AT E147164 T1 19970115; DE 69123953 D1 19970213; DE 69123953 T2 19970522; WO 9202812 A1 19920220

DOCDB simple family (application)

EP 91910376 A 19910530; AT 91910376 T 19910530; DE 69123953 T 19910530; SU 9100109 W 19910530